Intelligent Multi-Directional Swimming Pool Cleaning Robot

ABSTRACT

The invention relates to an intelligent multi-directional swimming pool cleaning robot which includes a rectangular mounting platform, a driving wheel disposed at the bottom of the mounting platform, a control device and a plurality of brush mechanisms. All of the brush mechanisms include a first brush mechanism disposed at the bottom of the mounting platform, a second brush mechanism and a third brush mechanism both disposed vertically. The top of the mounting platform is provided with a double-head driving device which drives reciprocating movement of the second brush mechanism and the third brush mechanism. Four guide columns are respectively vertically disposed at four corners of the top of the mounting platform. The second brush mechanism and the third brush mechanism are slidably engaged with the guide columns respectively by a horizontal sliding rod. All horizontal sliding rods respectively limit the second brush mechanism and the third brush mechanism to maintain the vertical state while reciprocating. The bottom and the side wall of the pool are simultaneously cleaned, which increases the cleaning efficiency and shorten the cleaning time.

FIELD OF THE INVENTION

The invention relates to intelligent cleaning equipment. In particular, the invention relates to an intelligent multi-directional swimming pool cleaning robot.

BACKGROUND

Swimming pool cleaning machine is a cleaning device for swimming pool. It can crawl on the bottom of the pool, walk around, and repeatedly clean the bottom of the pool back and forth. It can filter the water in the pool, and store the garbage. Swimming pool cleaning machine can be divided into manual control and automatic control according to the needs of use. However, the machines generally only clean the bottom of the pool. The cleaning area is limited, and the side wall of the swimming pool cannot be cleaned. Moreover, the cleaning efficiency is low and the cleaning is time consuming.

SUMMARY OF THE INVENTION

The object of the present invention is to overcome the deficiency of the existing swimming pool cleaning machine by providing an intelligent multi-directional swimming pool cleaning robot.

To solve the above deficiency, the present invention provides the following technical solution.

An intelligent multi-directional swimming pool cleaning robot includes a rectangular mounting platform, a driving wheel disposed at the bottom of the mounting platform, a control device and a plurality of brush mechanisms. All of the brush mechanisms include a first brush mechanism disposed at the bottom of the mounting platform, a second brush mechanism and a third brush mechanism both disposed vertically. The second brush mechanism and the third brush mechanism are respectively disposed just above the two ends of the top of the mounting platform. The top of the mounting platform is provided with a double-head driving device which drives reciprocating movement of the second brush mechanism and the third brush mechanism. Four guide columns are respectively vertically disposed at four corners of the top of the mounting platform. The second brush mechanism and the third brush mechanism are slidably engaged with the guide columns respectively by a horizontal sliding rod. All horizontal sliding rods respectively limit the second brush mechanism and the third brush mechanism to maintain the vertical state while reciprocating. The double-head driving device and all the driving wheels are all electrically connected to the control device.

Further, the first brush mechanism includes a first support frame having a U-shaped shape and a downward opening, and a horizontally disposed first brush roller. The first support frame is provided with a first rolling element at both ends thereof. The two ends of the first brush roller are provided with a first gear that cooperates with the first rolling assembly. The first rolling element includes a first roller, and a second gear fixedly connected to the center of the first roller. The axis of the first roller is parallel to the axis of the first brush roller. The plane of the second gear is perpendicular to the axis of the first roller. The first gear meshes with the second gear. Both two ends of the first support frame are provided with a first slot configured to mesh with the first roller.

Further, the second brush mechanism includes a vertically disposed second support frame having a U-shaped shape, and a vertically disposed second brush roller. The second support frame is provided with a second rolling element at both ends thereof. The two ends of the second brush roller are provided with a third gear that cooperates with the second rolling assembly. The second rolling element includes a second roller, a fourth gear fixedly connected to the center of the second roller. The axis of the second roller is parallel to the axis of the second brush roller. The plane of the fourth gear is perpendicular to the axis of the second roller. The third gear meshes with the fourth gear. Both two ends of the second support frame are provided with a second slot configured to mesh with the second roller.

Further, a middle portion of the second support frame is provided with a first buffer assembly. The middle portion of the second support frame is provided with a notch for mounting the first buffer assembly. The first buffer assembly includes a first guide column and a first buffer spring. The first guide column is vertically disposed and the first buffer spring is sleeved on the first guide column.

Further, the third brush mechanism includes a vertically disposed third support frame having a U-shaped shape, and a vertically disposed third brush roller. The third support frame is provided with a third rolling element at both ends thereof. The two ends of the third brush roller are provided with a fifth gear that cooperates with the third rolling assembly. The third rolling element includes a third roller, a sixth gear fixedly connected to the center of the third roller. The axis of the third roller is parallel to the axis of the third brush roller. The plane of the sixth gear is perpendicular to the axis of the third roller. The fifth gear meshes with the sixth gear. Both two ends of the third support frame are provided with a third slot configured to mesh with the third roller.

Further, a middle portion of the third support frame is provided with a second buffer assembly. The middle portion of the third support frame is provided with a notch for mounting the second buffer assembly. The second buffer assembly includes a second guide column and a second buffer spring. The second guide column is vertically disposed and the second buffer spring is sleeved on the second guide column.

Further, the horizontal sliding rod includes a first sliding rod and a second sliding rod. Two ends of the first sliding rod are respectively slidably engaged with the two guide columns. Two ends of the second sliding rod are respectively engaged with the other two guide columns. The longitudinal directions of the first sliding rod and the second sliding rod are both perpendicular to the axis of the first roller.

Further, the double-head driving device includes a double-head driving motor, a first connecting rod and a second connecting rod disposed at two ends of the double-head driving motor. The longitudinal directions of the first connecting rod and the second connecting rod are both perpendicular to the axis of output shaft of the double-head driving motor. One end of the first connecting rod away from the double-head driving motor is connected to the first buffer assembly through a horizontally disposed first connecting column head. The first connecting column head is hinged with one end of the first connecting rod. The first connecting column head is provided with a through hole for the first guide column to pass through. The top end of the first buffer spring abuts to the bottom of the first connecting column head. One end of the second connecting rod away from the double-head driving motor is connected to the second buffer assembly through a horizontally disposed second connecting column head. The second connecting column head is hinged with one end of the second connecting rod. The second connecting column head is provided with a through hole for the second guide column to pass through. The top end of the second buffer spring abuts to the bottom of the second connecting column head.

Further, the control device includes a controller and a plurality of sensors disposed on the top of the mounting platform. All of the sensors are electrically connected to the controller. Each of the driving wheels includes a speed reducer, and the speed reducer is electrically connected to the controller by a driving module of the speed reducer.

The technical effect of the present invention is to provide an intelligent multi-directional swimming pool cleaning robot. When the swimming pool cleaning machine is started, the controller controls and drive the speed reducer, and drives the rotation of the driving wheels. The swimming pool cleaning machine moves forward. The first roller rotates against the ground, and drives the first brush roller to rotate to scrub the bottom of the pool. The second roller rotates against the side wall of the swimming pool and drives the second brush roller to rotate to clean the side wall. The controller controls the rotation of the double-head driving motor to drive the second brush mechanism and the third brush mechanism to reciprocate on the vertical plane to clean the side wall. When the pool cleaning machine reaches the side wall, the sensor sends an electrical signal to the controller. The controller controls the driving wheels to rotate in the vertical direction to drive the pool cleaning machine to turn. The above actions are repeated. The bottom and the side wall of the pool are simultaneously cleaned, which increases the cleaning efficiency and shorten the cleaning time.

BRIEF DESCRIPTION OF THE DRAWINGS

The invention is illustrated by the following figures and embodiments.

FIG. 1 is a schematic diagram of three-dimensional structure of an intelligent multi-directional swimming pool cleaning robot in accordance with an example embodiment.

FIG. 2 is a schematic diagram of three-dimensional structure of an intelligent multi-directional swimming pool cleaning robot in accordance with an example embodiment.

FIG. 3 is a schematic diagram of three-dimensional structure of an intelligent multi-directional swimming pool cleaning robot in accordance with an example embodiment.

FIG. 4 is an enlarged view of A of FIG. 3.

FIG. 5 is a schematic diagram of three-dimensional structure of an intelligent multi-directional swimming pool cleaning robot in accordance with an example embodiment.

FIG. 6 is an enlarged view of B of FIG. 5.

FIG. 7 is a schematic diagram of three-dimensional structure of an intelligent multi-directional swimming pool cleaning robot in accordance with an example embodiment.

FIG. 8 is an enlarged view of C of FIG. 6.

FIG. 9 is an enlarged view of D of FIG. 6.

FIG. 10 is a schematic exploded view showing the structure of an intelligent multi-directional swimming pool cleaning robot in accordance with an example embodiment.

FIG. 11 is an enlarged view of E of FIG. 10.

The reference numbers of the figures are as follows:

1: mounting platform; 2: first brush mechanism; 2 a: first brush roller; 2 b: first roller; 2 c: first gear; 2 d: second gear; 2 e: first support frame; 2 e 1: first slot; 3: second brush mechanism; 3 a: second brush roller; 3 e 1: the second slot; 3 b: second roller; 3 c: third gear; 3 d: fourth gear; 3 e: second support frame; 3 e 1: second slot; 4: third brush mechanism; 4 a: third brush roller; 4 b: third roller; 4 c: fifth gear; 4 d: sixth gear; 4 e: third support frame; 4 e 1: third slot;

5: double-head driving device; 5 a: double-head driving motor; 5 b: first connecting rod; 5 c: second connecting rod; 6: first buffer assembly; 6 a: first buffer spring; 6 b: first guide column; 6 c: first connecting column head; 7: second buffer assembly; 7 a: second buffer spring; 7 b: second guide column; 7 c: second connecting column head; 8: waterproof cover; 9: sensor;

10: driving wheel; 11: first sliding rod; 12: second sliding rod; 13: guide column.

DETAILED DESCRIPTION

The invention is illustrated in accordance with figures. The figures as simplified diagrams demonstrate the basic structures of the apparatus of embodiments of the invention. Thus, the invention is not limited to the figures.

An intelligent multi-directional swimming pool cleaning robot as shown in FIGS. 1-11 includes a rectangular mounting platform 1, a driving wheel 10 disposed at the bottom of the mounting platform, a control device and a plurality of brush mechanisms. All of the brush mechanisms include a first brush mechanism 2 disposed at the bottom of the mounting platform 1, a second brush mechanism 3 and a third brush mechanism 4 both disposed vertically. The second brush mechanism 3 and the third brush mechanism 4 are respectively disposed just above the two ends of the top of the mounting platform 1. The top of the mounting platform 1 is provided with a double-head driving device 5 which drives reciprocating movement of the second brush mechanism 3 and the third brush mechanism 4. Four guide columns 13 are respectively vertically disposed at four corners of the top of the mounting platform 1. The second brush mechanism 3 and the third brush mechanism 4 are slidably engaged with the guide columns 13 respectively by a horizontal sliding rod. All horizontal sliding rods respectively limit the second brush mechanism 3 and the third brush mechanism 4 to maintain the vertical state while reciprocating. The double-head driving device 5 and all the driving wheels 10 are all electrically connected to the control device. The driving wheels 10 are conventional and are not discussed for details.

Working principle: when the swimming pool cleaning machine is started, the controller controls and drive the speed reducer, and drives the rotation of the driving wheels 10. The swimming pool cleaning machine moves forward. The first roller 2 b rotates against the ground, and drives the first brush roller 2 a to rotate to scrub the bottom of the pool. The second roller 3 b rotates against the side wall of the swimming pool and drives the second brush roller 3 a to rotate to clean the side wall. The controller controls the rotation of the double-head driving motor 5 a to drive the second brush mechanism 3 and the third brush mechanism 4 to reciprocate on the vertical plane to clean the side wall. When the pool cleaning machine reaches the side wall, the sensor 9 sends an electrical signal to the controller. The controller controls the driving wheels 10 to rotate in the vertical direction to drive the pool cleaning machine to turn. The above actions are repeated.

The first brush mechanism 2 includes a first support frame 2 e having a U-shaped shape and a downward opening, and a horizontally disposed first brush roller 2 a. The first support frame 2 e is provided with a first rolling element at both ends thereof. The two ends of the first brush roller 2 a are provided with a first gear 2 c that cooperates with the first rolling assembly. The first rolling element includes a first roller 2 b, and a second gear 2 d fixedly connected to the center of the first roller 2 b. The axis of the first roller 2 b is parallel to the axis of the first brush roller 2 a. The plane of the second gear 2 d is perpendicular to the axis of the first roller 2 b. The first gear 2 c meshes with the second gear 2 d. Both two ends of the first support frame 2 e are provided with a first slot 2 e 1 configured to mesh with the first roller 2 b. When the first roller 2 b is rolled forward against the ground, the first gear 2 c and the second gear 2 d are rotated, thereby driving the first brush roller 2 a to rotate to clean the bottom of the pool.

Referring to FIGS. 1, 3, 5, 6, 7, 8, 10 and 11, the second brush mechanism 3 includes a vertically disposed second support frame 3 e having a U-shaped shape, and a vertically disposed second brush roller 3 a. The second support frame 3 e is provided with a second rolling element at both ends thereof. The two ends of the second brush roller 3 a are provided with a third gear 3 c that cooperates with the second rolling assembly. The second rolling element includes a second roller 3 b, a fourth gear 3 d fixedly connected to the center of the second roller 3 b. The axis of the second roller 3 b is parallel to the axis of the second brush roller 3 a. The plane of the fourth gear 3 d is perpendicular to the axis of the second roller 3 b. The third gear 3 c meshes with the fourth gear 3 d. Both two ends of the second support frame 3 e are provided with a second slot 3 e 1 configured to mesh with the second roller 3 b. When the second roller 3 b is rolled forward against the ground, the third gear 3 c and the fourth gear 3 d are rotated, thereby driving the second brush roller 3 a to rotate to clean the side wall of the pool.

A middle portion of the second support frame 3 e is provided with a first buffer assembly 6. The middle portion of the second support frame 3 e is provided with a notch for mounting the first buffer assembly 6. The first buffer assembly 6 includes a first guide column 6 b and a first buffer spring 6 a. The first guide column 6 b is vertically disposed and the first buffer spring 6 a is sleeved on the first guide column 6 b. When the bottom end of the second brush roller 3 a abuts against the bottom of the pool, the first buffer assembly 6 prevents the second brush roller 3 a from coming into contact with the bottom of the pool, causing the first roller 2 b at the bottom end of the second brush roller 3 a to wear.

Referring to FIGS. 1, 3, 4, 5, and 9, the third brush mechanism 4 includes a vertically disposed third support frame 4 e having a U-shaped shape, and a vertically disposed third brush roller 4 a. The third support frame 4 e is provided with a third rolling element at both ends thereof. The two ends of the third brush roller 4 a are provided with a fifth gear 4 c that cooperates with the third rolling assembly. The third rolling element includes a third roller 4 b, a sixth gear 4 d fixedly connected to the center of the third roller 4 b. The axis of the third roller 4 b is parallel to the axis of the third brush roller 4 a. The plane of the sixth gear 4 d is perpendicular to the axis of the third roller 4 b. The fifth gear 4 c meshes with the sixth gear 4 d. Both two ends of the third support frame 4 e are provided with a third slot 4 e 1 configured to mesh with the third roller 4 b. When the third roller 4 b is rolled forward against the side wall of the pool, the fifth gear 4 c and the sixth gear 4 d are rotated, thereby driving the third brush roller 4 a to rotate to clean the side wall of the pool.

A middle portion of the third support frame 4 e is provided with a second buffer assembly 7. The middle portion of the third support frame 4 e is provided with a notch for mounting the second buffer assembly 7. The second buffer assembly 7 includes a second guide column 7 b and a second buffer spring 7 a. The second guide column 7 b is vertically disposed and the second buffer spring 7 a is sleeved on the second guide column 7 b. When the bottom end of the third brush roller 4 a abuts against the bottom of the pool, the second buffer assembly 7 prevents the third brush roller 4 a from coming into contact with the bottom of the pool, causing the first roller 2 b at the bottom end of the third brush roller 4 a to wear.

Referring to FIGS. 1, 2, 3, 4, and 11, the horizontal sliding rod includes a first sliding rod 11 and a second sliding rod 12. Two ends of the first sliding rod 11 are respectively slidably engaged with the two guide columns 13. Two ends of the second sliding rod 12 are respectively engaged with the other two guide columns 13. The longitudinal directions of the first sliding rod 11 and the second sliding rod 12 are both perpendicular to the axis of the first roller 2 b. The side of the second support frame 3 e adjacent to the first sliding rod 11 is provided with a sliding sleeve sliding with the first sliding rod 11. The first sliding rod 11 limits the second brush mechanism 3 always in a vertical state. The side of the third support frame 4 e adjacent to the second sliding rod 12 is provided with a sliding sleeve sliding wit the second sliding rod 12. The second sliding rod 12 limits the third brush mechanism 4 always in a vertical state.

The double-head driving device 5 includes a double-head driving motor 5 a, a first connecting rod 5 b and a second connecting rod 5 c disposed at two ends of the double-head driving motor 5 a. The longitudinal directions of the first connecting rod 5 b and the second connecting rod 5 c are both perpendicular to the axis of output shaft of the double-head driving motor 5 a. One end of the first connecting rod 5 b away from the double-head driving motor 5 a is connected to the first buffer assembly 6 through a horizontally disposed first connecting column head 6 c. The first connecting column head 6 c is hinged with one end of the first connecting rod 5 b. The first connecting column head 6 c is provided with a through hole for the first guide column 6 b to pass through. The top end of the first buffer spring 6 a abuts to the bottom of the first connecting column head 6 c. One end of the second connecting rod 5 c away from the double-head driving motor 5 a is connected to the second buffer assembly 7 through a horizontally disposed second connecting column head 7 c. The second connecting column head 7 c is hinged with one end of the second connecting rod 5 c. The second connecting column head 7 c is provided with a through hole for the second guide column 7 b to pass through. The top end of the second buffer spring 7 a abuts to the bottom of the second connecting column head 7 c. The double-head drive motor 5 a drives the first connecting rod 5 b and the second connecting rod 5 c to rotate, and drives the second brush mechanism 3 and the third brush mechanism 4 to reciprocate on the vertical side wall of the swimming pool. The double-head driving motor 5 a is covered by a waterproof cover 8 at the outside.

The control device includes a controller and a plurality of sensors 9 disposed on the top of the mounting platform 1. All of the sensors 9 are electrically connected to the controller. Each of the driving wheels 10 includes a speed reducer, and the speed reducer is electrically connected to the controller by a driving module of the speed reducer. When the pool cleaning machine approaches the corner of the pool, the sensor 9 transmits an electrical signal to the controller. The controller controls the rotation of the drive wheel 10 to drive the pool cleaning machine to turn. The sensor 9 and the controller are of the prior art and are not discussed in details.

The exemplary embodiments of the present invention are thus fully described. Although the description referred to particular embodiments, it will be clear to one skilled in the art that the present invention may be practiced with variations of these specific details. Hence this invention should not be construed as limited to the embodiments set forth herein. 

What is claimed is:
 1. An intelligent multi-directional swimming pool cleaning robot, comprising: a rectangular mounting platform 1, a driving wheel 10 disposed at the bottom of the mounting platform, a control device and a plurality of brush mechanisms, wherein all of the brush mechanisms include a first brush mechanism 2 disposed at the bottom of the mounting platform 1, a second brush mechanism 3 and a third brush mechanism 4 both disposed vertically; the second brush mechanism 3 and the third brush mechanism 4 are respectively disposed just above the two ends of the top of the mounting platform 1; the top of the mounting platform 1 is provided with a double-head driving device 5 which drives reciprocating movement of the second brush mechanism 3 and the third brush mechanism; four guide columns 13 are respectively vertically disposed at four corners of the top of the mounting platform 1; the second brush mechanism 3 and the third brush mechanism 4 are slidably engaged with the guide columns 13 respectively by a horizontal sliding rod; all horizontal sliding rods respectively limit the second brush mechanism 3 and the third brush mechanism 4 to maintain the vertical state while reciprocating; the double-head driving device 5 and all the driving wheels 10 are all electrically connected to the control device, wherein the first brush mechanism 2 includes a first support frame 2 e having a U-shaped shape and a downward opening, and a horizontally disposed first brush roller 2 a; the first support frame 2 e is provided with a first rolling element at both ends thereof; the two ends of the first brush roller 2 a are provided with a first gear 2 c that cooperates with the first rolling assembly; the first rolling element includes a first roller 2 b, and a second gear 2 d fixedly connected to the center of the first roller 2 b; the axis of the first roller 2 b is parallel to the axis of the first brush roller 2 a; the plane of the second gear 2 d is perpendicular to the axis of the first roller 2 b; the first gear 2 c meshes with the second gear 2 d; both two ends of the first support frame 2 e are provided with a first slot 2 e 1 configured to mesh with the first roller 2 b, wherein the second brush mechanism 3 includes a vertically disposed second support frame 3 e having a U-shaped shape, and a vertically disposed second brush roller 3 a; the second support frame 3 e is provided with a second rolling element at both ends thereof; the two ends of the second brush roller 3 a are provided with a third gear 3 c that cooperates with the second rolling assembly; the second rolling element includes a second roller 3 b, a fourth gear 3 d fixedly connected to the center of the second roller 3 b; the axis of the second roller 3 b is parallel to the axis of the second brush roller 3 a; the plane of the fourth gear 3 d is perpendicular to the axis of the second roller 3 b; the third gear 3 c meshes with the fourth gear 3 d; both two ends of the second support frame 3 e are provided with a second slot 3 e 1 configured to mesh with the second roller 3 b.
 2. The intelligent multi-directional swimming pool cleaning robot, comprising: a rectangular mounting platform 1 of claim 1, wherein a middle portion of the second support frame 3 e is provided with a first buffer assembly 6; the middle portion of the second support frame 3 e is provided with a notch for mounting the first buffer assembly 6; the first buffer assembly 6 includes a first guide column 6 b and a first buffer spring 6 a; the first guide column 6 b is vertically disposed and the first buffer spring 6 a is sleeved on the first guide column 6 b.
 3. The intelligent multi-directional swimming pool cleaning robot, comprising: a rectangular mounting platform 1 of claim 1, wherein the third brush mechanism 4 includes a vertically disposed third support frame 4 e having a U-shaped shape, and a vertically disposed third brush roller 4 a; the third support frame 4 e is provided with a third rolling element at both ends thereof; the two ends of the third brush roller 4 a are provided with a fifth gear 4 c that cooperates with the third rolling assembly; the third rolling element includes a third roller 4 b, a sixth gear 4 d fixedly connected to the center of the third roller 4 b; the axis of the third roller 4 b is parallel to the axis of the third brush roller 4 a; the plane of the sixth gear 4 d is perpendicular to the axis of the third roller 4 b; the fifth gear 4 c meshes with the sixth gear 4 d; both two ends of the third support frame 4 e are provided with a third slot 4 e 1 configured to mesh with the third roller 4 b.
 4. The intelligent multi-directional swimming pool cleaning robot, comprising: a rectangular mounting platform 1 of claim 1, wherein a middle portion of the third support frame 4 e is provided with a second buffer assembly 7; the middle portion of the third support frame 4 e is provided with a notch for mounting the second buffer assembly 7; the second buffer assembly 7 includes a second guide column 7 b and a second buffer spring 7 a; the second guide column 7 b is vertically disposed and the second buffer spring 7 a is sleeved on the second guide column 7 b.
 5. The intelligent multi-directional swimming pool cleaning robot, comprising: a rectangular mounting platform 1 of claim 1, wherein the horizontal sliding rod includes a first sliding rod 11 and a second sliding rod 12; two ends of the first sliding rod 11 are respectively slidably engaged with the two guide columns 13; two ends of the second sliding rod 12 are respectively engaged with the other two guide columns 13; the longitudinal directions of the first sliding rod 11 and the second sliding rod 12 are both perpendicular to the axis of the first roller 2 b.
 6. The intelligent multi-directional swimming pool cleaning robot, comprising: a rectangular mounting platform 1 of claim 1, wherein The double-head driving device 5 includes a double-head driving motor 5 a, a first connecting rod 5 b and a second connecting rod 5 c disposed at two ends of the double-head driving motor 5 a; the longitudinal directions of the first connecting rod 5 b and the second connecting rod 5 c are both perpendicular to the axis of output shaft of the double-head driving motor 5 a; one end of the first connecting rod 5 b away from the double-head driving motor 5 a is connected to the first buffer assembly 6 through a horizontally disposed first connecting column head 6 c; the first connecting column head 6 c is hinged with one end of the first connecting rod 5 b; the first connecting column head 6 c is provided with a through hole for the first guide column 6 b to pass through; the top end of the first buffer spring 6 a abuts to the bottom of the first connecting column head 6 c; one end of the second connecting rod 5 c away from the double-head driving motor 5 a is connected to the second buffer assembly 7 through a horizontally disposed second connecting column head 7 c; the second connecting column head 7 c is hinged with one end of the second connecting rod 5 c; the second connecting column head 7 c is provided with a through hole for the second guide column 7 b to pass through; the top end of the second buffer spring 7 a abuts to the bottom of the second connecting column head 7 c.
 7. The intelligent multi-directional swimming pool cleaning robot, comprising: a rectangular mounting platform 1 of claim 1, wherein the control device includes a controller and a plurality of sensors 9 disposed on the top of the mounting platform 1; all of the sensors 9 are electrically connected to the controller; each of the driving wheels 10 includes a speed reducer, and the speed reducer is electrically connected to the controller by a driving module of the speed reducer. 